docs: extend included examples

[MikeMcC399]

• closes Add examples: cypress/base, cypress/browsers and GitHub Actions #1109
• closes Non-fatal caching error with cypress/included in GitHub Actions with non-root user #1119
• closes Add GitLab Pipeline documentation for cypress/included #1222

Change

The included/README is extended regarding usage of the Cypress Docker image cypress/included

1. The examples are aligned with the base/README and browsers/README documents.

2. A section "Continuous Integration" is added, with sub-sections

   • GitHub Actions
   • GitLab Pipelines

3. A missing cypress- string is added to the tag schema

4. Version-specific examples are updated to latest Cypress 13.15.1

[cypress-app-bot]

• Create a Draft Pull Request if your PR is not ready for review. Mark the PR as Ready for Review when you're ready for a Cypress team member to review the PR.

[MikeMcC399]

Preview

https://github.com/MikeMcC399/cypress-docker-images/blob/extend/examples-included/included/README.md

[jennifer-shehane]

These are great changes! Thanks!

[MikeMcC399]

@jennifer-shehane

These are great changes! Thanks!

• I'm happy this has been merged! The changes have been queued up for a while on my side and they now make the documentation more consistent, coherent and comprehensive.

• I would have like to have made some smaller incremental updates, however the previous structure of the README, which was written more like a blog post, made that difficult. So this PR is a bit bigger than others that I have submitted in the past.

• I tried to cover the essential basics and I've dropped some of the less mainstream uses. I manually tested each of the examples. That is when I noticed the missing Linux release version in the debug logs, which led to me posting issue Module API results.osVersion contains only Linux distribution without release version cypress#30533.